Joy in the Making › Crop Circles by Martha Rives Image 1 of 1 Crop Circles by Martha Rives $200.00 Mixed media raised relief diptych. 21x23x1.5. Please contact the gallery at (603) 431-4230 to inquire about shipping. Purchase Added! Mixed media raised relief diptych. 21x23x1.5. Please contact the gallery at (603) 431-4230 to inquire about shipping.